Apparatus for making flued openings in pipes and similar cylindrical bodies



M. W. KELLOGG APPARATUS FOR MAKING FLUED OPENINGS IN PIPES AND Jan. 17, 1928.

SIMILAR GYLI'NDRICAIJ BODIES Filed Aug. 18. 1926 2 Sheets-Sheet 1 7 INVENTOR.

Mam/a W Mm 006 ATTORNEYS 1,556,736 rn's AND Jan. 17, 1928.

- M. W. KELLOGG APPARATJS FOR MAKING FLUED OPENINGS IN SIMILAR CYLINDRICAL BODIES 2 Sheets-Sheet 2 Filed A112. 18. 1926 I N V EN TOR MORE/6' ([511 as:

ATTORNEYS Jill Patented Jan. 17,1928.

UNITED STATES PATENT OFFICE.

MORRIS W. KELLOGG, OF BROOKVILLE, NEW YORK, ASSIGNOR TO THE M. W. KEIOIJOGG COMPANY, A. CORPORATION OF DELAWARE.

APPARATUS FOR MAKING FLUED OPENINGS IN PIPES AND SIMILAR CYLIND B'IdAL BODIES.

Application filed August 18, 1926. Serial No. 180,098.

This invention relates particularly to apparatus-for making flued openings in pipes, whereby they may be made in the sides of pipes, cylinders, and the like, of any desired size or shape, so as to form a flange on the margin of the opening which flange is drawn from the metal adjacent the opening. The invention is particularly adapted for use in connection with tubes of various diameters, such as openings in headers for steam piping for use with boilers, although its use in other types of pipe connections is obvious.

' By flued openings, I desire to be understood as meaning openings in the side of a pipe or similar cylindrical body having a flange extending outwardly from the periphery of the opening. While my invention may also be employed for making such openings in curved surfaces other than in the sides of such ipes and cylinders, I shall refer herein, I or simplicity, to all of such openings as flued openings. -While flanged openings have been formed in heads of more or less convex metallic bodies or plates, such as tanks and boiler headers, it has not been considered feasible to make them in the sides of comparatively long pipes or cylinders. Heretofore, the general practice in making openings or outlets in the" side of pipes or cylinders, has been to cut a hole of the desired size and shape in the pipe and then rivet, weld or otherwise secure a ring or flanged collar to the edge of the metal around the opening. This requires considerable labor and time and necessitates special collars for different sized holes and pipes of various diameters.

It is the object of the present invention to provide an improved apparatus by which the additional collar, as well as the loss of labor, time and attendant difficulties incident thereto may be eliminated, and by which a stronger and more satisfactory flange may be provided accurately and in less time than heretofore required. According to my invention flued openings may be provided of various sizes and sha es by simply changing the dimensions an operating positions of certain arts, that is, of the die and forming punc sets of which may be provided for the various sizes 01' flued openings.

here 1' and is securely he be positioned. The cylinder 8 is pre My invention will be better understood from the following description taken in connectlon with the accompanying drawings and its scope will be pointed out'in the appended claims.

In the drawings, illustrating what I now consider the preferred form of my inven 'tion,

' Fig. 1 is a side view, with parts illustrated in section, of apparatus embodying my invention, shown in operative position.

Fig. 2 is a sectional view of the pipe showing how the flange is formed by the punch and die. 4

Fig. 3 is a horizontal section taken substantially on the line 33 of Fig. 1.

Flg. 4 is a front view of the'a paratus.

Fig. 5 is a sectional view taken on the line 5-5 of Fig. 1-.

Fig. 6. is a sectional view of a pipe having a flan e formed thereon.

It will e obvious to thoseskilled in the but for convenience I have disclosed a construction .which I have found to be particularly desirable because of the simpllcity of design and the facility of operation.

In the drawings the numeral 1 indicates two parallel L-shaped frame members supported upon girders 2 and held in spaced relation with each other by cross-brac1ng3 and by a member 4 securely bolted to the lower horizontal portions of the members 1 as illustrated in the drawings. Two parallel supporting members 1 are positioned upon shoulders formed in the upper part of the frame members 1 as illustrated in Fig. 1 and are fastened thereto by means of the bolts 28. Y,

A member 5, adapted to support the h draulic cylinder which actuates the punc is positioned between the supporting memin place by means of the bolts 6. he lower extremity allel portions 31, to which the die support is adapted to be secured as illustrated in the drawings and described hereinafter. cylinder support 5 is provided with an o ning 7 in which the cylinder 8 1s adapte to erably This 16 may of the punch actuating cylinder 5 provided with projections 9 which rest upon shoulders 10, and is held in position by the bolts 11, as illustrated in Fig. 4.

The hydraulic cylinder 8 may be of any standard design suitable for the intended purpose and having a piston 12 connected to the cross bar 13 of a link comprising cross bars 13 and 14 and connecting members 15. The lower cross-bar 14 has a cylindrical opening in which a punch rod 16 is free to rotate.

The upper portion of the punch rod 16 is made cylindrical in form and is fprovided with an enlar ed portion 17 which ts into a corresponding y shaped recess in the top of of the same thickness as the punch rod 16 but having a greater cross-sectional length. Just below the position occupied by the washer 18 the punch rod 16 is provided with a square section 20 adapted to be engaged b a wrench whereby the punch rod rotated within thecross-bar 14. The numeral 21 indicates, in the particular embodiment illustrated, a substantially hemispherical punch head or member whose greatest diameter equals the inside diameter of the desired flued openings. The central portion 22 of the punch head 21 has a rectangular hole 23 corresponding in size to the enlarged portion 19 of the punch rod 16. Thelower surface of the central portion 22 is provided with 'four spaced pro ections 24 as illustrated in the drawings.

A die support 33 which preferably 1s m the form of an annulus is fastened to the rtion 31 in any suitable manner, such as y means of bolts, not shown in the drawings, and the die 34 is secured to the die su rt by means ,ofthe bolts 35. ile the pipe 25 is being operated to form the their it may flanged opening held in position between two inc ined blocks 38 supported upon a, latform 36 having stiflemng ribs 39 and a ront piece 37 bolte to the member 4 as illustrated in Fig. 1.

While I have described the construction ecifically and have referred to it as being ydraulic,

it is to. be understood that any suitable type of apparatus may be employed for the same pu and may be operated by any other fluid press are medium or other power means.

In view of the foregoing detailed descriptlon of my apparatus the method and operation thereof will be readily understood. The hole 26 is first made in the pipe 25 at the point where the desired flued opening is to be made. Its size and shape depend chiefly upon the size and shape of the flued opening, but obviously it must be such size as to permit the entry of the punch rod 16. This operation is preferably carried out before p acing of the pipe in the above described apparatus. The pipe 25 is placed on the inclined blocks 38, which are positioned with respect to the pipe in accordance with the size thereof. The pipe is then placed in a convenient position so that the margin of the opening may have a heating device in the form of a gas or oil burner applied thereto. When the section of the pipe to be flprovided with the flued opening has been su ciently heated the burner is removed and the pipe positioned to bring the hole or opening beneath the center of the c linder.

The punch head 21 may be p seed in op-.

erative position upon the punch rod 16 m the following manner: The punch head 21, supported by tongs or on a movable carriage or other suitable means adapted for this purpose, is introduced longitudinally within the pipe 25 to a point opposite the hole 26 therein. The lpunch rod 16 is turned by means of a wrenc fitted to the uared section 20 until the corners of the en arged portion 19 are in alignment with the corresponding corners of the hole 23 and the punch rod is then forced down through the ole 26 and through the punch head 21 until the upper surface of the enlarged portion 19.extends beyond-the projections 24. The

punch rod 16 is 'ven a uarter turn and the upper surface 0 the e arged portion 19 is brought into contact with the punch 21 so that the latter is preventedfrom turning with respect to the punch rod 16 by the rojections 24. The plston 12 is then cause to move upward by the admission of the hydraulic fluid into the cylinder 8 thus ullin the punch head 21 upward into and t roug the ie 34 as illustrated in Fig. 2, thus formmg the desired flued opening b an expansion and bending of the heate margin of the opening.

Having thus described this form of my invention, I do not wish to be understood as being limited to the details and arrangements of the parts set forth, for various changes may be made by those skilled in the art without departing from the spirit and sapppiof'my invention.

1 it I claim fis:

y p aratus or makin flan o nings-in the side of an elongs ed hofib w b d dy, comprising 1n combination, a die support, a d1e, a unchhead adapted to be inserted longitu lnally within saidbody and provided with a central bearing having a slot therein, a key member adapted to be inserted within said slot and power means connected with said member and located Without said body for pulling said punch head through said die.

' 2. Apparatus for making flanged openings in the side of an elongated hollow body, comprising in combination, a die support, a die, a punch head adapted to be inserted longitudinally within said body and provided with a central bearing having an elongated opening therein, apunch rod having lateral projections thereon adapted to be passed through said opening and be turned at right angles to lock said head thereto, and power means connected with said rod and located without said body for pulling said punch head through said die..

3. Apparatus for making flanged openings in the side of an elongated hollow body, comprising in combination, a die -su port, a die, a punch head adapted to be inserted longitudinally within said body and provided with a central bearing having an elongated opening therein and provided With spaced projections on its lower surface, a punch rod provided with lateral projections and adapted to be passed through said opening and be positioned between said rojec tions to lock saidv head to said rod, and

power means connected with said rod and 30 located without said body for pulling said punch head through said die.

Signed at New York, this 16th day of August, 1926.

MORRIS W. KELLOGG. 

